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EP0008023A1 - Installation de signalisation de sécurité - Google Patents

Installation de signalisation de sécurité Download PDF

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Publication number
EP0008023A1
EP0008023A1 EP79102541A EP79102541A EP0008023A1 EP 0008023 A1 EP0008023 A1 EP 0008023A1 EP 79102541 A EP79102541 A EP 79102541A EP 79102541 A EP79102541 A EP 79102541A EP 0008023 A1 EP0008023 A1 EP 0008023A1
Authority
EP
European Patent Office
Prior art keywords
individual
distributor
current paths
line
detectors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP79102541A
Other languages
German (de)
English (en)
Inventor
Wolfgang Benckendorff
Hans Dipl.-Ing. Kübler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0008023A1 publication Critical patent/EP0008023A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
    • G08B29/08—Signalling of tampering with the line circuit

Definitions

  • the invention relates to aracemeldeanla- g e with a number of detector lines, each with two or more outgoing from a central current paths, which are guided via distributor for connecting each of one or more detectors, where the individual current paths from manifold to manifold, or from a distributor to the individual detectors are formed by differently colored wires of a cable.
  • Such systems are common. Cable wires with different colors are used to identify the individual current paths so that, on the one hand, the individual detection lines can be specifically switched through when the system is being set up, the individual detectors can be switched on correctly, and, on the other hand, the individual current paths can be identified in the event of faults in each line section.
  • this identification of the individual current paths in intrusion detection systems facilitates targeted manipulation. For example, by short-circuiting certain line sections certain detectors are rendered ineffective.
  • terminal resistors are installed in each detector. If such a detector is short-circuited, the change in resistance on the line in the control center leads to an alarm.
  • the size of the terminating resistors limits the number of detectors that can be connected to a maximum of one line.
  • the object of the invention is to design a security alarm system of the type mentioned at the outset against sabotage, without the individual detectors having to be equipped with additional devices such as terminal resistors for this purpose.
  • this object is achieved in that the individual line wires marked with specific colors are assigned to different current paths in each cable section according to a random distribution.
  • the individual lines can no longer be identified by an outsider.
  • the line marking is retained for assembly and maintenance, since the color distribution selected when the system was set up can be defined and saved for each line section.
  • the drawing shows the structure of an intruder alarm system with a control center Z, to which various alarm lines ML1 to MLm are connected.
  • facilities for line monitoring as well as for alarming and displaying are provided in the usual way.
  • quiescent current-monitored zones with two current paths each are provided, i.e. the ML1 line with the L11 and L12 current lines, the ML2 zone with the L21 and L22 current paths etc.
  • more lines per zone can also be provided.
  • a sabotage line SL with the two current paths S1 and S2 is switched on.
  • the current paths of the individual detection lines ML and the sabotage line SL are switched from the central station Z via several distributors V1, V2 etc. to the distributor Vn.
  • the current loop of each detection line is closed via a terminating resistor R1, R2 etc.
  • a specific voltage is then applied to each signaling line in the control center Z, so that a quiescent current of a certain magnitude flows through the respective terminating resistor. In this way, every line interruption as well as every line short circuit can be recognized by current measurement in the control center.
  • Detectors are connected to the individual distributors V1, V2, etc.
  • the detector D1 with its detector contact d1 is in the current path L12.
  • the detector D2 lies with its signaling contact d2 in the current path L22.
  • the respective contact is opened; this is recognized as an open circuit in the relevant line.
  • the sabotage line has a sabotage contact k or ds in each distributor V and in each detector D. These sabotage contacts open when the distributor or detector is manipulated, i.e. the housing is opened.
  • the individual current paths are forwarded from the control center to the distributors, between the distributors and from the distributors to the detectors via cables, the individual wires of which have different colors.
  • these colors are denoted, for example, by sw (black), ws (white), gn (green), bl (blue), ge (yellow) and rt (red).
  • sw black
  • ws white
  • gn green
  • bl blue
  • ge yellow
  • rt red
  • more colors or color combinations can be used.
  • the assignment of the individual colors to a specific current path is different in each cable section.
  • the current path L12 is connected between the control center Z and the distributor V1 with a white wire, from the distributor V1 to the detector D1 with a red and a black wire, from the distributor V1 to the distributor V2 with a blue wire, etc.
  • the order of the colors The individual distributor connections vary in each cable section in a different way. It can be determined, for example, by a random generator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Burglar Alarm Systems (AREA)
EP79102541A 1978-08-03 1979-07-18 Installation de signalisation de sécurité Withdrawn EP0008023A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2834143 1978-08-03
DE19782834143 DE2834143A1 (de) 1978-08-03 1978-08-03 Sicherheitsmeldeanlage

Publications (1)

Publication Number Publication Date
EP0008023A1 true EP0008023A1 (fr) 1980-02-20

Family

ID=6046163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102541A Withdrawn EP0008023A1 (fr) 1978-08-03 1979-07-18 Installation de signalisation de sécurité

Country Status (3)

Country Link
US (1) US4274086A (fr)
EP (1) EP0008023A1 (fr)
DE (1) DE2834143A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4507644A (en) * 1983-03-10 1985-03-26 Custom Touch Electronics Touch responsive security and antitheft system
US5350885A (en) * 1992-04-08 1994-09-27 Monogram Industries, Inc. Armored cable
JP3255961B2 (ja) * 1992-05-13 2002-02-12 秀治 小川 情報配線設備の接続情報取得装置
US6825418B1 (en) * 2000-05-16 2004-11-30 Wpfy, Inc. Indicia-coded electrical cable
US8905108B2 (en) 2007-06-04 2014-12-09 Encore Wire Corporation Method and apparatus for applying labels to cable
US8347533B2 (en) 2007-10-11 2013-01-08 Southwire Company Machine applied labels to armored cable
US7812259B2 (en) * 2008-10-24 2010-10-12 Southwire Company Metal-clad cable with foraminous coded label
US11319104B1 (en) 2009-01-30 2022-05-03 Encore Wire Corporation System and apparatus for applying labels to cable or conduit
US7954530B1 (en) 2009-01-30 2011-06-07 Encore Wire Corporation Method and apparatus for applying labels to cable or conduit
US8826960B1 (en) 2009-06-15 2014-09-09 Encore Wire Corporation System and apparatus for applying labels to cable or conduit
US11031157B1 (en) 2013-08-23 2021-06-08 Southwire Company, Llc System and method of printing indicia onto armored cable

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2414747A1 (de) * 1974-03-27 1975-10-09 Merk Gmbh Telefonbau Fried Schaltungsanordnung fuer eine gleichstromgespeiste, ruhestromueberwachte schleifenleitung einer alarmmeldeanlage

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2106048A (en) * 1932-11-12 1938-01-18 Candy & Company Inc Coded wire
US2945204A (en) * 1957-06-05 1960-07-12 Western Electric Co Designation strips for apparatus
US3404393A (en) * 1965-04-01 1968-10-01 Sidney L. Blivice Alarm system
US3644927A (en) * 1969-05-27 1972-02-22 Gulton Ind Event monitor system
US4032916A (en) * 1975-05-27 1977-06-28 American District Telegraph Company Intrusion alarm cable supervision system
US3988724A (en) * 1975-07-17 1976-10-26 David John Anderson Theft alarm
DE2638068C3 (de) * 1976-08-24 1986-11-13 Siemens AG, 1000 Berlin und 8000 München Brandmeldeanlage mit mehreren über eine Meldeschleife betreibbaren Meldern
DE2641489C2 (de) * 1976-09-15 1984-05-30 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Übertragung von Meßwerten in einem Brandmeldesystem

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2414747A1 (de) * 1974-03-27 1975-10-09 Merk Gmbh Telefonbau Fried Schaltungsanordnung fuer eine gleichstromgespeiste, ruhestromueberwachte schleifenleitung einer alarmmeldeanlage

Also Published As

Publication number Publication date
DE2834143A1 (de) 1980-02-21
US4274086A (en) 1981-06-16

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT CH FR GB IT NL SE

17P Request for examination filed
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19830608

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BENCKENDORFF, WOLFGANG

Inventor name: KUEBLER, HANS, DIPL.-ING.